Mounting for bobbin stripper



Feb. 13, 1968 F- E. LUCKEY 3,368,589

MOUNTING FOR BOBBIN STRIPPER Filed June 7, 1966 FIGI INVENTOR.

FRANKLIN E LUCKEY ATTORNEYS United States Patent O 3,368,589 MOUNTING FOR BOBBIN STRIPPER Franklin E. Luckey, Rte. 1, Box 550-D-6, Mount Holly, N.C. 28120 Filed June 7, 1966, Ser. No. 555,910 5 Claims. (Cl. 139-264) This invention relates to bobbin strippers for automatic bobbin-changing looms for weaving, and more particularly to improved mounting means for the bobbin stripper whereby maintenance and repair of the loom, stripper or associated bobbin replenishing means is facilitated.

Automatic bobbin-changing looms are well known and are in widespread use. Typical bobbin replenishing equipment is disclosed in US. Patents 2,638,658 and 2,638,937 on bobbin strippers, 2,638,936 and 2,763,443 on bobbin winders and 2,766,779 and 2,785,704 on bobbin replenishing mechanisms. The disclosures of the above patents are incorporated herein by reference.

As is well known, mechanical or electrical failures occur from time to time in automatic looms or their associated bobbin replenishing equipment, necessitating maintenance and repair. The down time required to make necessary repairs or replacement constitutes a serious economic loss. In many cases, the major portion of the down time is consumed in detachment and reattachment of portions of the equipment, such as the bobbin stripper, from the loom in order to obtain access to the trouble spot to make the necessary repairs or adjustments, the repairs themselves requiring only a fraction of the total down time. The looms and associated equipment are not only compact and of diflicult access but the close proximity of many looms in the weaving mill further complicates repair and maintenance.

The bobbin stripper associated with automatic looms is, according to the prior art, firmly bolted to the leg or frame of the loom, typical mounting being illustrated in FIG- URE l of U.S. Patent 2,638,658. When repairs must be made on the stripper or the loom parallel, the stripper must be detached from the loom leg or frame by disassembly of the mounting bolts after removal of the bobbin conveyor belt and the power drive belt. After repairs have been made, the stripper must be remounted and realigned to properly position the stripper in operable position. The total time necessary for a skilled mechanic to demount, remount and realign a prior art stripper such as illustrated in Patents 2,638,658 and 2,638,937 is on the order of 30 to 40 minutes, whereas the actual repairs may require only a few minutes additional time. Thus, the major portion of down time is consumed in such disassembly and reassembly operations.

It is an object of this invention to provide an improved mounting means for bobbin strippers which facilitates repair of the stripper or loom and associated equipment and decreases the down time required to make repairs.

A further object of this invention is to provide an improved mounting means for bobbin strippers which is adaptable both to existing equipment in the form of an attachment kit or which may be incorporated into newly manufactured equipment.

A further object is to provide a bobbin stripper mounting means which is simple and economical to manufacture and assemble.

Further objects and advantages will be apparent to those skilled in the art.

My improved bobbin stripper mounting means generally comprises a pivotal or hinge connection between the stripper and the loom leg or frame whereby the stripper may be swung out of operable position to facilitate repairs. The pivot or hinge means is provided with releasable locking means whereby the stripper is mainice tained in proper operating position when the loom is in operation. The hinge or pivot means is preferably separable whereby the stripper itself can be detached from the loom.-

Referring to the accompanying drawing:

FIG. 1 is a front elevation view, with parts broken away, of a bobbin stripper mounted on the loom leg or frame according to the invention.

FIG. 2 is an exploded view of the improved mounting means of the invention showing its methodof assembly and attachment to the loom leg.

Referring to FIG. 1, a bobbin stripper of the type heretofore identified is indicated at 11. The stripper 11 includes a conventional receiver 12 for receiving the com: pletely stripped bobbins, the receiver including the conventional bobbin conveyor 13 for returning bobbins to the winder, as more fully illustrated in Patents 2,638,658, 2,638,936 and 2,638,937.

Details of the stripper mounting means are best shown in FIG. 2 along with FIG. 1. A stripper mounting plate 14 is provided and to which the stripper 11 is adjustably attached as by threaded fasteners 15 through openings 16. A hinge plate 17 is fastened to the loorn leg 18 as by threaded fasteners 19. Hinge plate 17 is provided with socket members 20 which removably receive L-shaped pivot pins 21 which are adjustably secured to the stripper mounting plate 14 by threaded fasteners 22 through openings 23. The socket members 20 are provided with looking screws 28 enabling locking of the entire assembly in position with respect to the loom leg 18.

In use, the stripper, mounted on the mounting plate 14 is pivotally secured to the loom leg by hinge pins 21. In order to perform work on the stripper or loom parts otherwise inaccessible, the conveyor belt 13 is removed and the stripper drive belt (not shown) is removed. The locking screws 28 are released and the entire stripper assembly is then swung about the pivot pins 21 enabling access to the stripper or loom. In FIG. 2 the mounting plate 14 is shown in operative position in dotted lines and in the swung-out position in solid lines. After the necessary repairs have been made the stripper assembly is swung back into proper position, the locking screws 28 tightened and the conveyor belt 13 and stripper drive belt (not shown) replaced.

The threaded fastener means 15 and 21 and 22 enable the stripper to be properly oriented in vertical alignment with the loom and associated replenishing equipment. Once this adjustment is made and the threaded fasteners tightened, further realignment is unnecessary after repairs have been made. If the stripper requires extensive repair, a replacement unit, consisting of the stripper, the stripper mounting plate 14 and the pivot pins 21 may be lifted out of sockets 20 and a like assembly immediately replaced, thereby minimizing down time.

The entire operation, including removal of the belts and the loosening of the locking screws can be accomplished in a few minutes, and after the necessary repairs have been made the stripper unit repositioned and the belts replaced in a similar short time, thereby saving 20- 30 minutes down time.

It will be apparent to those skilled in the art that the improved mounting means is readily adapted to existing equipment as well as in the manufacture of new equipment.

While the invention has been described and illustrated in terms of preferred embodiments, they are to be considered illustrative rather than limiting and it is intended to cover all further modifications which fall within the spirit and scope of the appended claims.

I claim:

1. In an automatic bobbin-changing loom having bobbin winding means, replenishing means, bobbin stripping means mounted on the loom frame for removing residue yarn from exhausted bobbins and conveying means for" returning stripped bobbins to the bobbin winding means, the improvement comprising vertical pivot means mounting said bobbin stripping means on saidloom frame, said pivot means including lock means for locking the bobbin stripping means in operable position, whereby upon release of said lock means said bobbin stripping means may be pivotally swung out of operable position to facilitate repair of said loom and associated bobbin handling equipanent.

2. The improvement of claim 1 wherein said pivot means is separable whereby the bobbin stripping means may be detached from the 100m frame.

3. The improvement of claim 1 wherein said vertical pivot means comprises vertical socket means mounted on the loom frame and cooperating pivot means carried by said bobbin stripping means.

4. Mounting means for a bobbin stripper comprising a first plate having vertical socket means adapted to be secured to a loom frame, a second plate having pivot means cooperating with said socket means adapted to be mounted on said bobbin stripper, and lock means on said socket means for locking said pivot means against movement.

5. The mounting means set forth in claim 4 including adjustable means for mounting said second plate on said bobbin stripper.

References Cited UNITED STATES PATENTS 539,754 5/ 1895 Hastings 248202 2,296,982 9/1942 Cobb et al. 139255 3,142,513 7/1964 Skokut 248202 HENRY S. JAUDON, Primary Examiner. 

1. IN AN AUTOMATIC BOBBIN-CHANGING LOOM HAVING BOBBIN WINDING MEANS, REPLENISHING MEANS, BOBBIN STRIPPING MEANS MOUNTED ON THE LOOM FRAME FOR REMOVING RESIDUE YARN FROM EXHAUSTED BOBBINS AND CONVEYING MEANS FOR RETURNING STRIPPED BOBBINS TO THE BOBBIN WINDING MEANS, THE IMPROVEMENT COMPRISING VERTICAL PIVOT MEANS, MOUNTING SAID BOBBIN STRIPPING MEANS OF SAID LOOM FRAME, SAID PIVOT MEANS INCLUDING LOCK MEANS FOR LOCKING THE BOBBIN STRIPPING MEANS IN OPERABLE POSITION, WHEREBY UPON RELEASE OF SAID LOCK MEANS SAID BOBBIN STRIPPING MEANS MAY BE PIVOTALLY SWUNG OUT OF OPERABLE POSITION TO FACILITATE REPAIR OF SAID LOOM AND ASSOCIATED BOBBIN HANDLING EQUIPMENT. 